Extemporise : পূর্বপ্রস্তুতি ব্যতীত বলা বা বক্তৃতা করা;
Related Words
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Appropriate Prepositions
Appropriate to(যোগ্য): His answer is appropriate to the question.
Avail (oneself) of(সুযোগের স্বব্যবহার করা): I shall avail myself of the first trip to London tomorrow.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Fail in (ব্যর্থ হওয়া): He failed in getting internet connection in his room.
Relation with (সম্পর্ক): I have no relation with the culprit.
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Idioms
At least (in the lowest estimate- কমপক্ষে) He is the owner of thirty lakh taka at least.
Be all and end all (the ultimate out come- চরম পরিণতি—n) A loss of one million taka was the be all and end all of the projects.
Far and wide (সর্বত্র): His fame spread far and wide.
Head and ears (সম্পূর্ণরূপে): He is over head and ears in debt.
In the long run (পরিণামে): You will have to suffer in the long run.